How I Automated My Blog Using n8n + AI

Published on July 31, 2025 • 8 min read

I love writing. But I hate the grind: researching keywords, formatting markdown, resizing images, and pushing it to my CMS.

So… I automated everything.

Now I just type a blog idea into the automation — 10 minutes later, I’ve got a fully formatted, AI-written post in my website.
Image, title, metadata — done.

My Workflow

n8n takes over. It handles:

• Keyword suggestions
• AI title generation
• Gmail Verify the titles or ask to rewrite
• Image fetching
• Blog content creation
• Post to my website

All on autopilot.

n8n workflow diagram showing the complete blog automation process

Keyword Ideas Without SEO Tools (as they are paid)

To fetch keyword suggestions, n8n calls Google Suggest with a basic HTTP request and extracts data using regex.

// n8n HTTP Request Node
const topic = $('Google Sheets').first().$node["Blog Ideas"].json["Topic"];
const url = `http://suggestqueries.google.com/complete/search?client=firefox&q=${encodeURIComponent(topic)}`;

Title Generation with Mistral

The topic is fed to OpenRouter (Mistral 7B), which responds with 5 possible blog titles.

If I reply to the email with:

• rewrite: it generates 5 new titles
• 1 to 5: it locks that title and continues

Auto Image + Overlay

Using the Unsplash API + an image processing service, it:

• Grabs a relevant image
• Adds a title overlay (styled)
• Saves it to the correct path with proper dimensions

AI Blog Draft

Once the title’s locked, another OpenRouter call generates ~800 words of markdown content in my tone.

No fluff. Just usable content.

That’s it. From idea ➝ published post.
All automated. All mine.

Let me know if you'd like to see the full n8n workflow exported 👀